[HELP] Vibrate is not working - LG Optimus 4X HD

Hi all I have a problem with my phone and it just happen an hour ago,My phone vibrate is not working anymore first I thought I've turn if off but no it's still turn on so I decided to factory reset and it appear that still not working,..my last choice is to flash firmware and I hopefully it will back to normal but god is not by my side...anyone here have the same problem as I do? or know anyway to fix it? by the way i'm using official 4.1.2 euro open and sorry for my bad english thank you in advance for reply

eddytheman said:
Hi all I have a problem with my phone and it just happen an hour ago,My phone vibrate is not working anymore first I thought I've turn if off but no it's still turn on so I decided to factory reset and it appear that still not working,..my last choice is to flash firmware and I hopefully it will back to normal but god is not by my side...anyone here have the same problem as I do? or know anyway to fix it? by the way i'm using official 4.1.2 euro open and sorry for my bad english thank you in advance for reply
Click to expand...
Click to collapse
When you say vibration, do you refer to vibration as haptic feedback or the one when you receive a phone call? Have you checked the setting?
You also might want to check if it's hardware or software related. Go to hidden menu (3845#*880#), ELT test, choose Manual mode, and choose Vibrator. If it vibrates, you can rest assured it's software related. Reflashing your phone might just fix it.
Sent from my LG-P880 using Tapatalk 2

hernestwisnu said:
When you say vibration, do you refer to vibration as haptic feedback or the one when you receive a phone call? Have you checked the setting?
You also might want to check if it's hardware or software related. Go to hidden menu (3845#*880#), ELT test, choose Manual mode, and choose Vibrator. If it vibrates, you can rest assured it's software related. Reflashing your phone might just fix it.
Sent from my LG-P880 using Tapatalk 2
Click to expand...
Click to collapse
Thank you,I've try it and still didn't work and I think the problem is water because my phone was fall down to the water last night not deep water just in the sink of the bath room but it still working without problem still wonder what the main issue is...anyway I have turn the phone off pull the battery out and will leave it for day or 2 days then let see what happen after that

eddytheman said:
Thank you,I've try it and still didn't work and I think the problem is water because my phone was fall down to the water last night not deep water just in the sink of the bath room but it still working without problem still wonder what the main issue is...anyway I have turn the phone off pull the battery out and will leave it for day or 2 days then let see what happen after that
Click to expand...
Click to collapse
Well, if it's hardware related stuff, there's nothing much we can do. I think what you're doing is the best possible thing to do right now. Good luck. Hope your device will be just fine
Sent from my LG-P880 using Tapatalk 2

Related

Help: My HD has suddenly gone dead

My hd has suddenly gone dead. The battery light does not turn on even if plugged in. I have tried to reset while plugged in but nothing happens. Connecting to the pc also doesn't help. Also tried to put it into bootloader without success. This does not feel good. Any ideas what might be the problem?
might be the usb connection. could be loose or bad
Have you tried to remove the battery, and put it back in..had a littel problem like (during unlock) that would turn on, removed the battery for 10s and put it back in and it turn on.
apap said:
My hd has suddenly gone dead. The battery light does not turn on even if plugged in. I have tried to reset while plugged in but nothing happens. Connecting to the pc also doesn't help. Also tried to put it into bootloader without success. This does not feel good. Any ideas what might be the problem?
Click to expand...
Click to collapse
HI Bro Iknow ur pain, this happen to my diamond also, one day just didnt turn on after unplug from my vista machine. Only thing I could think of is that maybe there was a short circuit somewhere between pluging to the computer with usb.
You will have to send it for repairs unfortunately
forget what i said.
i thought ur phone turns on but doesn't charge.
duttythroy said:
HI Bro Iknow ur pain, this happen to my diamond also, one day just didnt turn on after unplug from my vista machine. Only thing I could think of is that maybe there was a short circuit somewhere between pluging to the computer with usb.
You will have to send it for repairs unfortunately
Click to expand...
Click to collapse
The problem is that I have installed a custom rom...and no way of reverting to original...does this void my guarantee?
Came back ...for now
VIPPER2004 said:
Have you tried to remove the battery, and put it back in..had a littel problem like (during unlock) that would turn on, removed the battery for 10s and put it back in and it turn on.
Click to expand...
Click to collapse
I tried this and it magically came back. The strange thing is that I had been taking the battery out and putting it back in many times ...but perhaps I had not left the battery out long enough.
The battery also seems full which is kind of strange since I had been using the phone all day without charging.
In any case, I will leave it charging over night and report back tomorrow.
Thanks for your help!
VIPPER2004 said:
Have you tried to remove the battery, and put it back in..had a littel problem like (during unlock) that would turn on, removed the battery for 10s and put it back in and it turn on.
Click to expand...
Click to collapse
Hi,
Sorry for "using" the thread, and I am glad that it was resurrected, but... VIPPER2004, in end were you successful for the unlock? I have exactly the same problem, and so far have not succeeded... Any suggestions?
Thanks,
P.
Glad its working...
pdc4 was a mistake i made using htccode soft, im clumsy but everything went okey
apap said:
I tried this and it magically came back. The strange thing is that I had been taking the battery out and putting it back in many times ...but perhaps I had not left the battery out long enough.
The battery also seems full which is kind of strange since I had been using the phone all day without charging.
In any case, I will leave it charging over night and report back tomorrow.
Thanks for your help!
Click to expand...
Click to collapse
You'd better reflash a stock ROM and keep it for a while until you are reasonably sure that it was just a case and won't happen again.
VIPPER2004 said:
Glad its working...
pdc4 was a mistake i made using htccode soft, im clumsy but everything went okey
Click to expand...
Click to collapse
Hi again,
I am also trying to use the same soft, but no luck... could you please, eventually by PM, tell me the steps that worked for you?
And it can be in Portuguese... ; )
Thanks,
P.
Dead again
Well...it did happen again. This morning I found it dead again while plugged in. Unfortunately, I did not reflash it to stock rom. I can now only hope that I get a second chance to reflash before sending it off. Any other ideas are welcome.......
entering the new year without my blackstone
Looks like my hd has to take a trip to the factory.
Quick question: since I didn't manage to revert to initial rom does anyone know what the policy is on repairing an htc with custom rom?
That is indeed unfortunate...
What custom ROM have you installed? Have you checked in the thread if someone else had similar issues? And have you installed any particular program?
Also, you had no such issues while you were on the original ROM?
If you have this type of issues, trying to flash a stock ROM without being sure about the cause for the issues might be a little dangerous... There would be, I suppose, the risk that something might go wrong during the flashing process. And you would risk having a lovely brick...
Regards,
P.
I have installed Panosha's light version. No one else seems to be having this problem. Is there a chance that the battery is faulty? Can I have it repaired even though it has a custom rom installed?
Hi,
It might be a problem with the battery, but you could only try this possibility if you used other HD... by the way you have been using the wall charger or the usb cable attached to the PC?
Regarding the possiblity of having it repaired, under warranty, it could depend on the repairer itself. At the limit they could refuse to repair it under warranty, because a non-official ROM has been installed, and, specially, because a non-original HSPL is in place... but they could also overlook this, or do not notice it.
I would make sure it can not be "ressurected" and properly flashed before going to HTC service.
Regards,
P.
apap said:
Looks like my hd has to take a trip to the factory.
Quick question: since I didn't manage to revert to initial rom does anyone know what the policy is on repairing an htc with custom rom?
Click to expand...
Click to collapse
If you do, then please tell us. That's exactly what I was wondering.
pdc4 said:
Hi,
It might be a problem with the battery, but you could only try this possibility if you used other HD... by the way you have been using the wall charger or the usb cable attached to the PC?
Regarding the possiblity of having it repaired, under warranty, it could depend on the repairer itself. At the limit they could refuse to repair it under warranty, because a non-official ROM has been installed, and, specially, because a non-original HSPL is in place... but they could also overlook this, or do not notice it.
I would make sure it can not be "ressurected" and properly flashed before going to HTC service.
Regards,
P.
Click to expand...
Click to collapse
I have tried several times to resurrect it without success. On one ocassion I had the power light turn on for about 2 seconds then dead again. The only thing I have not tried is to try another battery. I will probably find one by tomorrow to test. Otherwise on Friday it will head to the repair shop...and fingers crossed. I will let you know what the repair policy seems to be here in Greece.
apap said:
I have installed Panosha's light version. No one else seems to be having this problem. Is there a chance that the battery is faulty? Can I have it repaired even though it has a custom rom installed?
Click to expand...
Click to collapse
Your phone is not broken!
Duttys ROM does not have this problem. I have had the same with Panosha's ROM and with Touch of HD ROM. The screen goes black and only removing the battery brings it back.
Vatt said:
Your phone is not broken!
Duttys ROM does not have this problem. I have had the same with Panosha's ROM and with Touch of HD ROM. The screen goes black and only removing the battery brings it back.
Click to expand...
Click to collapse
I wish this were the case, but even after removing the battery I cannot get it to function. Even when plugged into an outlet the power light does not turn on, so it's clearly more than a blank screen.

Bluetooth died on my zr

So a couple of days ago, I noticed that my car wasn't reading my phone anymore via bluetooth. I thought it may be a car issue so I checked with my girlfriend's HTC one and its working perfectly. Flashed the os through the Sony pc companion repair option, the ftf that I had made as well as factory reset but nothing seems to fix the Bluetooth. It works sporadically.
I also noticed that my sound system was also not detecting on my phone. So I took it to the Sony service place. They reflashed the os and tested it and it was working. I came home and paired it with my sound dock (which is a sony) and it worked for about half a song after which it stopped working. This is frustrating. Is this a hardware or software issue?
Sent from my C5502 using Tapatalk 2
Same problem too.
All bluetooth devices can't connect to my Xperia zr, even search it.
This occured after I update my ZR to 4.22. At first it might be software problem, I thought, so I flashed back to 4.12.
But still the same...
Suddenly, after half an our, my SBH20 can connect to my phone, I was so happy that the problem finally solved.
So I start to reinstall my favorite games from googleplay... Than, the bluetooth die again.
Maybe is both software and hardware problem?
Doesn't sound good at all. I will test mine and check.
Sent from my C5503 using xda app-developers app
I'm happy with that the Xperia A finally works well with my Jawbone Era, my GNexus keeps stop pass calls/sounds to my Era.
I'm fine in stock ROM 4.1.2
Unfortunately I'm facing the same issues here.
I searched around and the "Bluetooth Problem" affects other phones as well with similar symptoms, so it's most likely the software that's giving problems. There were varying success with setting the visibility to never timeout. I tried that and it worked for a short while, sadly now Bluetooth is MIA again...
The problem with this problem is that it's hard to nail down the root cause or reproduce consistently, so workable solutions are hard to find. There's an app on the Play store that claims to fix Bluetooth problems but it requires rooting, so I couldn't try it out.
Hmms looks like updating to 4.2.2 doesn't solve the problem for some of you... less rush for me to upgrade then.
Yeah, I also tried one factory reset on the phone, putting it in/out of flight mode, turning the phone on/off, and even toggling Bluetooth quickly trying to "jump-start" the underlying processes. The only change I noticed was when I was attempting the last option, I could briefly see the phone trying to disconnect from my car's Bluetooth, so it looked like something might have worked. For now, I'm just trying to live with the inconvenience every weekend when I drive.
I just find that my wifi will be disconnected by power saving mode and it won't back to work when I switch power saving mode off. Unless I have to disable all power saving mode and reboot. Would you please give it a try to switch power saving off and reboot the phone see if there's any help to the Bluetooth issue. I do only switch on power saving at night before sleep and give it a reboot every time the wifi don't work. That might be why I'm not experiencing Bluetooth issue in daytime. Could anyone can try and send some feedback please.
Sent from my SO-04E using XDA Premium 4 mobile app
GavinLiu said:
I just find that my wifi will be disconnected by power saving mode and it won't back to work when I switch power saving mode off. Unless I have to disable all power saving mode and reboot. Would you please give it a try to switch power saving off and reboot the phone see if there's any help to the Bluetooth issue. I do only switch on power saving at night before sleep and give it a reboot every time the wifi don't work. That might be why I'm not experiencing Bluetooth issue in daytime. Could anyone can try and send some feedback please.
Sent from my SO-04E using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Nope. No solution here. Will just have to go visit the service center again on Saturday. Need to find a phone with a micro sim to use while Sony tries to fix this problem. I doubt it is software related. Probably a hardware issue.
Sent from my C5502 using Tapatalk 2
blue_quartz said:
The problem with this problem is that it's hard to nail down the root cause or reproduce consistently, so workable solutions are hard to find. There's an app on the Play store that claims to fix Bluetooth problems but it requires rooting, so I couldn't try it .
Click to expand...
Click to collapse
The app didn't fix anything. Which is why I think it's a hardware problem. If it was software related, it would have come up earlier given that I used the phone for 3 months with no issues.
Sent from my C5502 using Tapatalk 2
djpeesh said:
The app didn't fix anything. Which is why I think it's a hardware problem. If it was software related, it would have come up earlier given that I used the phone for 3 months with no issues.
Sent from my C5502 using Tapatalk 2
Click to expand...
Click to collapse
That's too bad...
I sent my ZR to service center yesterday,and they called me a few minutes ago.
The engineer said that" Your phone is fine here and I return it back to the center, did you forget to turn on your bluetooth setting?"
Umm...what the...
I believe that he didn't do anything about "testing".
Maybe tomorrow I'll go to service center and check, hope it do recovered...
GavinLiu said:
I just find that my wifi will be disconnected by power saving mode and it won't back to work when I switch power saving mode off. Unless I have to disable all power saving mode and reboot. Would you please give it a try to switch power saving off and reboot the phone see if there's any help to the Bluetooth issue. I do only switch on power saving at night before sleep and give it a reboot every time the wifi don't work. That might be why I'm not experiencing Bluetooth issue in daytime. Could anyone can try and send some feedback please.
Sent from my SO-04E using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Didn't work for me.
djpeesh said:
Nope. No solution here. Will just have to go visit the service center again on Saturday. Need to find a phone with a micro sim to use while Sony tries to fix this problem. I doubt it is software related. Probably a hardware issue.
Sent from my C5502 using Tapatalk 2
Click to expand...
Click to collapse
Keep us posted...
I'm wondering ...
Is that SD card module or SIM card module caused this problem?
When I test my phone in service center, bluetooth was great, but after 5 minutes I set my SIM card and SD card in and reboot,it died again.
I guess the clue is between OS reflashed and SD card/SIM card, or even battery?
Guys.. still no news about the Bluetooth issue ??
have you tried Factory Reset / Re-installing software using PC Companion ? ,i want to buy this phone within week.. but i'm afraid of there hardware issues you guys facing !!
are these issues found in all Xperia ZRs
i need someone to confirm that the Bluetooth is working properly for him..
DoO37 said:
Guys.. still no news about the Bluetooth issue ??
have you tried Factory Reset / Re-installing software using PC Companion ? ,i want to buy this phone within week.. but i'm afraid of there hardware issues you guys facing !!
are these issues found in all Xperia ZRs
i need someone to confirm that the Bluetooth is working properly for him..
Click to expand...
Click to collapse
Of course, I did tried at the first time.
I send phone to service center again and will be back after 2 weeks, maybe.
Hope this time they can find the point and fix it...
Ohh wanted 2 open a thread about it, but it seems I'm not the only one it happened to him..
If anyone successfully solve the bluetooth problem plz let us know bros
Still here
N!geR -> E!ch0
franklinK said:
Of course, I did tried at the first time.
I send phone to service center again and will be back after 2 weeks, maybe.
Hope this time they can find the point and fix it...
Click to expand...
Click to collapse
I hope you got it fixed
DoO37 said:
I hope you got it fixed
Click to expand...
Click to collapse
Just got a replacement handset. So far it seems to be working. I've asked the service center to let me know as to what went wrong with my phone for the Bluetooth to stop working, given that after a reflash, it would work for about half an hour before conking off
djpeesh said:
Just got a replacement handset. So far it seems to be working. I've asked the service center to let me know as to what went wrong with my phone for the Bluetooth to stop working, given that after a reflash, it would work for about half an hour before conking off
Click to expand...
Click to collapse
Have you faced the Bluetooth issue so far again ??
DoO37 said:
Have you faced the Bluetooth issue so far again ??
Click to expand...
Click to collapse
I got my phone back yesterday, and it works perfectly so far.
They have no idea about how engineer fixed it, but it seems that they decomposed it and did something.
Because my warranty sticker was gone and the cover inside the battery slot is a little bit raised.
My phone is good right now, thanks guys!
yea but over at my side... Sony Singapore doesnt even wanna repair or have anything to do with phones that they didnt sell... (Yes ZR isnt sold here so I've got an export set)
so if theres any news, i'll be glad: D
Does there anyone try to check up your BT MAC address? I've met a strange thing on my GNexus. That phone from NTT too but not officially unlock network lock. the seller just flash some half done unlock tweak to it, then I found there are many NTT GNexus user have the same BT MAC as my phone does. and that cause us can't use BT trans file between GNexus and BT headset will drop link if there are two GNexus near by.
I've manually change the BT MAC to a new MAC (my old & not use BT headset's MAC) to get it fixed. If there is no clue to fix your BT issue, maybe you can try to learn how to edit your BT MAC on android.
BTW: does any of you who met the BT issue uses Xperia A SO-04E from NTT(the phone with 32GB build-in rom)? or all are 8GB international edition?

Water damage

A friend of mine with s3 mini accidentally drop water to his phone... The phone e works properly now but the screen can't stay off... With power key or screen off time the screen keeps enabling... I make factory reset but still nothing... Any thoughts?
pikachukaki said:
A friend of mine with s3 mini accidentally drop water to his phone... The phone e works properly now but the screen can't stay off... With power key or screen off time the screen keeps enabling... I make factory reset but still nothing... Any thoughts?
Click to expand...
Click to collapse
If it's in guarantee give it back to the store for replacement and tell him to make the duck! :silly:
If it's not in guarantee tell him to buy a new one. :crying:
jstath1972 said:
If it's in guarantee give it back to the store for replacement and tell him to make the duck! :silly:
If it's not in guarantee tell him to buy a new one. :crying:
Click to expand...
Click to collapse
So it isn't software fault... On the wakelock detector it show that the keuguard is keeping the screen on.. It is possible that it's hardware problem but the software keeps the phone on?
pikachukaki said:
So it isn't software fault... On the wakelock detector it show that the keuguard is keeping the screen on.. It is possible that it's hardware problem but the software keeps the phone on?
Click to expand...
Click to collapse
In normal situation when you press the button you activate the keyguard and it going to sleep after a few time. The software (keyguard) follows the hardware (button). In your case because of the damage of the hardware the button is always on and holds on the keyguard. Maybe i'm wrong but one other solution is to install a custom rom and deactivate the hardware button with the problem. You can activate and the navigation bar if you want. I think that can solve the problem also.
I would have opened up the phone and take a look. Disconnect/reconnect all cables inside and hope for the best
tys0n said:
I would have opened up the phone and take a look. Disconnect/reconnect all cables inside and hope for the best
Click to expand...
Click to collapse
I will try this I had to wait to find another phone for his work... And then I will try it...
pikachukaki said:
I will try this I had to wait to find another phone for his work... And then I will try it...
Click to expand...
Click to collapse
Don't open the phone if its still on warranty, just get it to the repair center. If you have no luck with getting your phone repaired for free try opening it as your last resort
EDIT: its obviously no software issue, it would be fixed by making a factory reseT/install custom ROM but you say you have already done that.
NickVXD said:
Don't open the phone if its still on warranty, just get it to the repair center. If you have no luck with getting your phone repaired for free try opening it as your last resort
EDIT: its obviously no software issue, it would be fixed by making a factory reseT/install custom ROM but you say you have already done that.
Click to expand...
Click to collapse
It isnt on warranty...and if it is its water damage and 99% they won't fix it!!!
Sometimes there is only a rest of water in phone. (Also same days later)
Put the phone without accu a few days in uncooked rice! (Maybe it is to late. Immediately after the bath rice is the best you can do)

Please help! No vibration!

Hi, so I was just texting with my phone using switkey and the vibration suddenly stopped. No vibration, so I thought it was a normal issue and the vibration would come back after a reboot. The same thing happened to me once, and it was fixed through that. But this time, nothing...It doesn't even vibrate when it boots, recovery mode, nothing. I'm running on Insert Coin and I have had no problem. And I haven't dropped the phone dangerously, I even have an otterbox to ensure its safety. But why did it stop vibrating?Is it a hardware issue? A software issue? Please help. I need the phone fixed by tomorrow, this is really important. I'm selling it to a friend and I need it fixed fast. Please help me.
*#*#3424#*#* dial this no run test for vibration
yatindroid said:
*#*#3424#*#* dial this no run test for vibration
Click to expand...
Click to collapse
I did that and the vibration didn't work.
Ali7000 said:
I did that and the vibration didn't work.
Click to expand...
Click to collapse
should check hardware then
Ali7000 said:
Hi, so I was just texting with my phone using switkey and the vibration suddenly stopped. No vibration, so I thought it was a normal issue and the vibration would come back after a reboot. The same thing happened to me once, and it was fixed through that. But this time, nothing...It doesn't even vibrate when it boots, recovery mode, nothing. I'm running on Insert Coin and I have had no problem. And I haven't dropped the phone dangerously, I even have an otterbox to ensure its safety. But why did it stop vibrating?Is it a hardware issue? A software issue? Please help. I need the phone fixed by tomorrow, this is really important. I'm selling it to a friend and I need it fixed fast. Please help me.
Click to expand...
Click to collapse
If it does not vibrate on boot, it's a hardware fault, sorry.
I had the same, it was repaired in warranty.
If u still have warranty, use it.
Thanks guys, even though I had the vibration issue I still managed to sell it for a good price. I bought the phone off Craigslist so no warranty, and it was rooted so yeah. Thanks anyways guys. I appreciate the help. And especially the first dude who replied. That test mode is gonna prove really useful when buying a phone off Craigslist.

Desperate for help on proximity sensor

Hi there everybody.
Just bought an Xperia Z3+,its been 4 days from now and since i did all updates,my proximity sensor doesnt work and screen stays always off during call and i cant bring it back.And i cant even end or close the call if the other part doesnt end the call.Sometimes it work and sometimes not.I dont use any cover or protection.
Its been 4 days till today since im mad,i tried searching everywhere and every app people advised but none seems to fix it.
Really desperate for help or an advise.I love this phone,but this problem is driving me crazy.
Thank u very much.Waiting for your answers.
If it´s only 4 days old you should take it back to the dealer and complain.
Btw... have you made a hard reset?
lastsamuraial said:
Hi there everybody.
Just bought an Xperia Z3+,its been 4 days from now and since i did all updates,my proximity sensor doesnt work and screen stays always off during call and i cant bring it back.And i cant even end or close the call if the other part doesnt end the call.Sometimes it work and sometimes not.I dont use any cover or protection.
Its been 4 days till today since im mad,i tried searching everywhere and every app people advised but none seems to fix it.
Really desperate for help or an advise.I love this phone,but this problem is driving me crazy.
Thank u very much.Waiting for your answers.
Click to expand...
Click to collapse
Before you do resets or return it, restart it and if that doesnt help do the volume up + PWR button for 5 secs when the phone is on. If neither of these work open up the SIM card port and above the sim card slot there is a white button, get a pin or something and hold it for a few seconds. If this also doesnt workdo a reset via PC Companion and lastly if this does not work just go back to the shop and tell them whats happening and they will probably give you a new one if its only been 4 days
Manneman32 said:
If it´s only 4 days old you should take it back to the dealer and complain.
Btw... have you made a hard reset?
Click to expand...
Click to collapse
I did a repair with PC Companion and tried all possible apps in play store related to proximity and screen still stays black.Sometimes it comes up,but most of the time it wont.
They will keep it for at last 2 weeks on service.((,.
Im really sad with this as i love this phone and paid a lot of moneys.Never had this issue with any other phone before and this is my first Xperia.I dont use case or any kind of covers
hasona said:
Before you do resets or return it, restart it and if that doesnt help do the volume up + PWR button for 5 secs when the phone is on. If neither of these work open up the SIM card port and above the sim card slot there is a white button, get a pin or something and hold it for a few seconds. If this also doesnt workdo a reset via PC Companion and lastly if this does not work just go back to the shop and tell them whats happening and they will probably give you a new one if its only been 4 days
Click to expand...
Click to collapse
I will do it now.
Thanks a lot.
@hasona
Still the same.:crying::crying::crying:
lastsamuraial said:
@hasona
Still the same.:crying::crying::crying:
Click to expand...
Click to collapse
Oh thats kinda sad, you probably got a bad one, they should be able to just swap it if its been 4-5days otherwise I think you will have to send it to service :/ But hopefully after that it will work fine
@lastsamuraial
Try these to see if your proximity sensor is working or not.
1) Dial this in your phone dialer:
*#*#7378423#*#*
This will take you to service stuff. Next, go to:
Service tests > Proximity switch
Move your hand or anything over the sensor which is located to the right of "SONY" on the front of your phone. It should go "On" when it detects something and "Off" if it doesn't.
2). Another test you can do is found at:
Settings > About phone > Diagnostics > Test > Ear Proximity
This will also test your sensor.
Thanks to all for your help,but i send it back and a new one is coming.
You can also use Z-Device Test from the Play store to test just about everything on your phone.

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